He seems to be doing nothing but he is just waiting for his chance.A. actuallyB. gradual

问题补充：

He seems to be doing nothing, but he is just waiting for his chance.

A. actually

B. gradually

C. frequently

D. certainly

答案：

(答案→)A. actually

B. gradually

C. frequently

D. certainly

解析：本题考查副词辨析。句意：他似乎是什么都没做，但实际上他是在等待时机。Actually实际上。